yemao229

　　There were seven wonders of the world in antiquity, and UNESCO counts 1,121 treasures today. A good half of them are threatened by natural disasters, war, urbanization or decay. 　　In Planet of Treasures, historian Sir Christopher Clark presents these most fascinating places around the globe: his path leads from the Great Pyramid of Giza in Egypt to the Serengeti National Park in ... (展开全部)